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High-Performance Solid-State PbS Quantum Dot-Sensitized Solar Cells Prepared by Introduction of Hybrid Perovskite Interlayer

Authors
Heo, Jin HyuckJang, Min HyukLee, Min HoShin, Dong HeeKim, Do HunMoon, Sang HwaKim, Sang WookPark, Bum JunIm, Sang Hyuk
Issue Date
29-11월-2017
Publisher
AMER CHEMICAL SOC
Keywords
lead sulfide; quantum dots; sensitized solar cells; perovskite; passivation
Citation
ACS APPLIED MATERIALS & INTERFACES, v.9, no.47, pp.41104 - 41110
Indexed
SCIE
SCOPUS
Journal Title
ACS APPLIED MATERIALS & INTERFACES
Volume
9
Number
47
Start Page
41104
End Page
41110
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/81497
DOI
10.1021/acsami.7b12046
ISSN
1944-8244
Abstract
High-performance solid-state PbS quantum dot-sensitized solar cells (QD-SSCs) with stable 9.2% power conversion efficiency at 1 Sun condition are demonstrated by introduction of hybrid perovskite interlayer. The PbS QDs formed on mesoscopic TiO2 (mp-TiO2) by spin-assisted successive precipitation and anionic exchange reaction method do not exhibit PbSO4 but have PbSO3 oxidation species. By introducing perovskite interlayer in between mp-TiO2/PbS QDs and poly-3-hexylthiophene, the PbSO3 oxidation species are fully removed in the PbS QDs and thereby the efficiency of PbS QD-SSCs is enhanced over 90% compared to the pristine PbS QD-SSCs.
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